Nomi-
Grade Designation
nal bolt
and Standard
size
1/4 - 28
SAE Grade 1
ASTM A307
SAE Grade 2
SAE Grade 4
SAE Grade 5
ASTM A449
SAE Grade 7
SAE Grade 8
ASTM A354 Grade
BD
ASTM A354 Grade
BC
Nominal
Grade Designation
bolt size
and Standard
5/16 - 18 SAE Grade 1
ASTM A307
SAE Grade 2
SAE Grade 4
SAE Grade 5
ASTM A449
SAE Grade 7
SAE Grade 8 ASTM
A354 Grade BD
ASTM A354 Grade
BC
MSSM0101CE/9906AV (4 of 19)
Ï
A ll values in foot pounds and (Newton meters)
Zinc or
If instructions call for :
Cadmium
Loctite
Loctite
Plated
222 or
242
262
2.8
3.4
(3.80)
(4.61)
4.7
5.6
(6.37)
(7.60)
5.5
6.6
(7.46)
(8.95)
7.3
8.7
(9.90)
(11.80)
8.9
10.7
(12.07)
(14.50)
10.2
12.2
(13.83)
(16.54)
—
—
Ï
A ll values in foot pounds and (Newton meters)
Zinc or
If instructions call for :
Cadmium
Loctite
Loctite
Plated
222
242
or262
5.1
6.2
(6.91)
(8.40)
8.5
10.2
(11.52)
(13.83)
10.0
12.0
(13.56)
(16.27)
13.0
15.6
(17.63)
(21.15)
16.1
19.3
(21.83)
(26.17)
18.5
22.1
(25.08)
(29.96)
16.1
19.3
(21.83)
(26.17)
35
Loctite
Loctite
271
272
3.8
4.1
(5.15)
(5.56)
(7.18)
6.3
6.9
(8.54)
(9.36)
(11.93)
7.3
8.1
(9.90)
(10.98)
(13.96)
9.7
10.7
(13.15)
(14.50)
(18.44)
11.9
13.1
(16.13)
(17.76)
(22.51)
13.6
15.0
(18.44)
(20.34)
(25.76)
—
—
Loctite
Loctite
271
272
6.8
7.5
(9.22)
(10.17)
(13.02)
11.3
12.5
(15.32)
(16.95)
(21.56)
13.3
14.6
(18.03)
(19.79)
(25.22)
17.4
19.1
(23.60)
(25.90)
(32.95)
21.5
23.6
(29.15)
(31.99)
(40.81)
24.6
27.1
(33.35)
(36.74)
(46.78)
21.5
23.6
(29.15)
(31.99)
(40.81)
Loctite
Bare
277
5.3
4.9
3.8
(6.64)
(5.15)
8.8
8.1
6.3
(10.98)
(8.54)
10.3
9.5
7.3
(12.88)
(9.90)
13.6
12.6
9.7
(17.08)
(13.15)
16.6
15.4
11.9
(20.88)
(16.13)
19.0
17.7
13.6
(23.99)
(18.44)
—
—
—
Loctite
Bare
277
9.6
8.9
6.8
(12.07)
(9.22)
15.9
14.7
11.3
(19.93)
(15.32)
18.6
17.3
13.3
(23.46)
(18.03)
24.3
22.6
17.4
(30.64)
(23.60)
30.1
27.9
21.5
(37.83)
(29.15)
34.5
32.0
24.6
(43.39)
(33.35)
30.1
27.9
21.5
(37.83)
(29.15)